SAC performs login accounting, just like the ac program but with total, per day, per user and per tty. It also performs average usage, hourly profiling, login listing, login clipping and raw wtmp reporting as well as tons of other options. SAC supports Tacacs 3.x/4.x and most Radius accounting files.
P-Synch is a commercial password management toolkit which provides automated password synchronization, password strength enforcement, password self-reset by authenticated users, and streamlined password reset by helpdesk. P-Synch is available for both internal use as well as for Internet-based deployments in B2B and B2C applications.
Dar is a shell command that makes backup of a directory tree and files. Its features include splitting archives over several files, DVD, CD, ZIP, or floppies, compression, full or differential backups, strong encryption, proper saving and restoration of hard links, extended attributes, file forks, Door inodes, and sparse files, remote backup using pipes and external commands (such as ssh), and rearrangement of the "slices" of an existing archive. It can run commands between slices, before and after saving some defined files or directories (for a proper database backup, for example), and quickly retrieve individual files from differential and full backups. Several external GUIs exist as alternatives to its CLI interface, like kdar, DarGUI, SaraB, etc.
cronolog reads log messages from its input and writes them to a set of output files, the names of which are constructed using template and the current date and time. The template uses the same format specifiers as the date(1) command. cronolog is intended to be used in conjunction with a Web server, such as Apache, to split the access log into daily or monthly logs.